Joseph j



NTTaD STATES PATENT Trice.

JOSEPH J'. ADGATE, OF NEW YORK, N. Y.

`waanROBE-aEnsim/ati.

SPECIFICATION forming' part of LettersPat/ent `No. 273,424, dated March 6, 1883. I

Application filed August 9, 1882. (Nomodel.)

bed-bottom arranged horizontally, showing it t applied to a casing, which is indicated in horizontal section, line x, Fig. 2. Fig. 2 is a vertical section, showing the bedstead in a horizontal position in full lines, and dotted in a position at right anglesthereto.' Fig. 3 is a side view in detail.

,bottom, a suitable frame therefor, and means whereby the said bed-bottom can be adjusted and set for different degrees of tension, as will be fully explained, and illustrated in the anneXed drawings.

v The letter A designates a bedstead-frame, which has its fulcrum at a, and which is provided with legs at its free end.

B designates abcd-bottom', which is secured` at b in a suitable manner to the free end of the frame A, and which is also attached at its opposite end to a canvas, C. This can vasis passed around a roller, D, which has its bearings in the side of the frame'A. The canvas is passed around a windlass, E, which has its bearings in blocks F, that are vertically adjustable in guides G G by means of screws H. The windlass E may be turned by a crank or other suitable means for the purpose of winding up or releasing the elastic bed-bottom, andfor regulating the tension ofthe same. On this windlass is keyed a ratchet-wheel, H, with which engages a toothed spring-pawl ratchet, I. This employment of other modes.

pawl-ratchet and its wheel will preventthe recoil of the spring bed-bottom.

It will be seen from the above description that I utilize the elasticity ot' the bed-bottom 55 B as means for elevating the bedstead-frame from a horizontal position to a ver/tical position. It will also be seen that I am able to adjust the winding-up shaft or windlass E vertically and bodily-for the purpose ot" chang- 6o ing the fulcrum of this win'dlass with respect to the journals of the windlass and the fulcrum a ot' the bedstead-frame.

AWhile I have above described one practical mode of carrying my invention into eii'ect, I do 65 not confine myself to the precise mode or contrivauce herein specified, as I contemplate the The gist of my invention consists essentially in utilizing the spring recoil ot' the bed-bottom, when such a 7o bottom is applied to a pivoted frame, for the purpose of raising the bedstead proper, as described above, and also t'or the purpose ot' counterbalancing the weight of the said frame andl the hed-clothing thereon. I have also shown and described means for adjusting the tension of the spring bed-bottom, and also for adjusting theheight ot'thefulcrum ofthe windlass or winding-up shaft, without materially changing the tension of the bed-bottom. So

It is obvious, from what I have shown and described, that I relieve the spring-tension of the bed-bottom to a great degree when the bedstead is erect, and thus prevent'undue strain on the springs.

I'pre'fer to use interlocking helical springs inthe composition of the hed-bottom; but I do not conne myself thereto, as any other practical spring-bottom may be substituted for the one which I have described and shown. 9o

Having described my invention, I claim- 1. A bedstead-frame which is hinged or pivoted, and which is provided with an elastic 'bed-bottom the recoil of the spring of which will raise the said frame to an upright position, substantially in the manner and for the purposes described.

2. The pivoted bedstead-frame provided with an elastic bottom, and having a windlass for adjusting the tension of the said frame, To j poses specified. v

3. A wardrobe-bedstead consisting of the In testimony whereof I affix my signature, hinged or pivoted frame, an elastic elevating in presence of two witnesses, this 5th day ot' xo spring-bottom, an adjustable device for regu- August., 1882. lating the tension thereof', and an adjustable 5 device for giving vertical movement to the windlass-sheft, all constructed and arranged Witnesses: to operate substantially in the manner and J. J. MCOARTHY, for the purposes described. I H. A. TOULMIN.

JOSEPH J. ADGATE. 

